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Sound Levels
Decibels (dB) are most commonly used as a measure of sound level, but they are also used in electronics, signals and communications...more

Good Hearing?
A typical person with good hearing can hear from about 20Hz to 20kHz (the audio bandwidth). A person's voice will usually range from 500Hz to 2kHz...more
Part E
Resistance of the Passage of Sound

Dyfed - Display Energy Certificate - 029 2193 0147
The office that covers this area is: Cardiff
The towns & cities that are covered within this county are:
Aberaeron, Aberystwyth, Ammanford, Burry Port, Cardigan, Carmarthen, Fishguard, Lampeter, Llanelli, Llansteffan, Milford Haven, Narberth, Newcastle Emlyn, Pembroke, Pembroke Dock, Saundersfoot, Tenby, Tregaron,
Phone Number: 029 2193 0147 Email: dyfed@e2consultants.co.uk
Our other services include:
Display Energy Certificate can also be known as:
DEC,


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Company No. 06728970